SPNY801113

Controllers Overview

The SPNY801113 is a Layer 2 managed 4-port Ethernet switch designed for industrial environments operating between -40°C and +85°C. It integrates four MACs, two PHYs compliant with IEEE 802.3u, and a non-blocking shared memory switch fabric delivering 1.4Gbps bandwidth. The device includes on-chip frame buffering of 64Kbytes and supports up to 128 VLAN groups. It features dual MII or RMII interfaces for CPU connectivity via SPI or I2C controllers.

Controllers Feature Summary

• Supports IEEE 802.1q VLAN tagging and IEEE 802.1d RSTP for network segmentation and loop prevention
• Provides comprehensive QoS capabilities including per-port rate limiting, broadcast storm protection, and priority-based queue management
• Integrates low-power dissipation features such as energy-detect mode and dynamic clock tree shutdown

Controllers Applications

• Industrial Control Systems
• Automotive Ethernet Networks
• VoIP Phone Infrastructure
• Embedded System Gateways

Controllers Procurement Notes

Verify the specific suffix 'Y' confirms the industrial temperature range (-40°C to +85°C) distinct from the commercial variant. Confirm package specifications match the 64-pin QFN lead-free requirement. Ensure ordering documentation aligns with Micrel manufacturing standards prior to procurement.

Controllers Selection Notes

Select this component when an industrial-grade managed switch is required for cost-sensitive embedded applications. Verify that the system design accommodates the dual MII/RMII interface requirements for CPU data exchange. Evaluate power constraints against the specified voltage domains and energy-detect capabilities.

Controllers Part Context

This part represents the industrial temperature-rated version of the SPNZ801113 family. While functionally identical to the commercial grade, it is qualified for extended environmental conditions. Both variants share the same pinout and register architecture within the Micrel integrated switch portfolio.

Controllers Replacement Considerations

The SPNZ801113 serves as the commercial equivalent for this industrial-grade component. Cross-referencing requires verifying temperature ratings and ensuring no functional differences exist in the ordering suffixes.